How to use decode and case in "where" and "from" clause of a select statement.
I know the decode can't be used in where clause. In that case how we can use decode and case in from clasue that is: table definition
I am facing a problem while retrieving data from table using DECODE/CASE.
Table: PARAM_MSTR
MIN_VALMAX_VALPARAM_CODE DESCRIPTION DATATYPE
AB1000 HARD PARAMETERTEXT
CN1000 SOFT PARAMETERTEXT
0501001 CRYSTAL PARAMETERNUMBER
512001001 STONE PARAMETERNUMBER
Now I want to get the parameter description based upon the PARAM_CODE and a value passed which should be in range of MIN_VAL and MAX_VAL. Means when I pass PARAM_CODE=1000 and :parameter=A, then it should check the DATATYPE of the PARAM_CODE, in our case it is 'TEXT' so it should check the passed value between MIN_VAL and MAX_VAL like
:parameter BETWEEN MIN_VAL AND MAX_VAL and should return 'HARD PARAMETER'.
If I pass PARAM_CODE=1001, then the DATA_TYPE is 'NUMBER', so it will check the :parameter value as Number.
Like :parameter BETWEEN to_number(MIN_VAL) AND to_number(MAX_VAL)
For example:
PARAM_CODE :parametr Result
1000 A HARD PARAMETER
1000 C SOFT PARAMETER
1000 P NULL
1001 25 CRYSTAL PARAMETER
1001 99 STONE PARAMETER
1001 201 NULL
I have written a query using DECODE and CASE statement but it is not working properly.
SELECT * FROM param_mstr WHERE PARAM_CODE=1000 AND :parameter BETWEEN DECODE(DATATYPE,'NUMBER',CAST(MIN_VAL as NUMBER),MIN_VAL)AND DECODE(DATATYPE,'NUMBER',CAST(MAX_VAL as NUMBER),MAX_VAL)
I am having some records in the table. If the record num is
1--It should show the month as "Apr"
2--"May"
3--"Jun"
4--"July"
5--"Aug"
6--"Sept"
if it is having other than these 6 should show "0" for the remaining months.
I had written follwoing sql with CASE statments, but in oracle 8i i'm unable to use CASE in pl/SQL.
how to convert following sql to DECODE ? Or is there any option other than DECODE ?
SELECT ol.order_no,
ol.transaction_line_id,
ol.pd_actl_tonnage,
ol.real_tonnage_high,
ol.req_tonnage,
il.id,
il.transaction_ref,
[code].....
Here is one an example with CASE WHEN statement.
SELECT empno,ename,sal,
CASE
WHEN sal BETWEEN 800 AND 1200
THEN 'Lowest Pay'
[Code]...
even DECODE can be a replacement for this scenario, but it cannot have as flexibility as CASE can have.
Now, I want Equivalent code for DECODE..
my query is some thing like this but having more column in select. when i am firing this query it is giving result but that is not proper,\.
my problem is , like if there are 3 more values for uh.sflowtype (0,1,2) then group by is not working for them and those are coming in different row , i need them to be combined
query is :
select substr(uh.sstartdatetime,1,8) DateTime,
( case
when uh.sflowtype=7 then 'sms'
when uh.sflowtype=9 then 'mms'
when uh.sflowtype=10 then 'gprs'
[code]....
result :
DATETIME FLOWTYPE
-------- --------
20130507 voice
20130507 voice
20130507 voice
20130507 sms
20130507 mms
but i need
20130507 voice
20130507 sms
20130507 mms
so what should i do?
case when age <= 17 then '<= 17'
when age >= 40 then '>= 40'
else to_char(t.age)
end age
the case statement above doesn't work in my 8.1.7 cursor statement within my pl/sql block so I need an equivalent decode
I am using oracle 11G database,I have to check length of name column value from employee table and if length(name) > 39 then value should be substr(name,0,39) else value should be name only. i tried below code
select CASE when length(name) > 39,substr(name,0,39)
else name
END
from employee but its not working ..can I do this using decode too ? ,,which one would be better or this is not a right way ?
Data Type Consistency CASE and Decode
CASE expects data type consistency, DECODE not expecting.
Obviously both functions handling data types are different let it be
SQL> select decode(2,1,1, 2,'2', ' three' )"RESULT" from dual;
RESULT
---
2
SQL> select case 2
2 when 1 then 1
3 when 2 then 2
4 else 3
5 end "RESULT" from dual;
RESULT
2
SQL> select case 2
2 when 1 then 1
3 when '2' then 2
4 else 3
5 end "RESULT" from dual;
ERROR at line 3:
ORA-00932: inconsistent datatypes: expected NUMBER got CHAR
know cause of error here????I mean " every time case exp checking data type consistency"
my thought is
I am trying to get same output but different methods. Yes, clearly states this is one of the Oracle bug!
I want to know how oracle handles here ???? i mean 3rd query.Purely i am testing this function with dual(dummy) table...
obviously, no possibilities for different data type.next one i am not sure about Oracle compares int variables to int variables, char variables to char variables,
I think so .... that's why oracle throws error. am i right ??ORA-00932: inconsistent datatypes: expected NUMBER got CHAR
see this query
SQL> select case 2
2 when 1 then 1
3 when '2' then 2
4 else 3
5 end "RESULT" from dual;
// clearly i am stating what's error on 3rd line ?????Even if I refer reference books some concepts are blind to understand.
Data Type Consistency CASE and Decode...CASE expects data type consistency, DECODE not expecting.Obviously both functions handling data types are different..let it be
SQL> select decode(2,1,1, 2,'2', ' three' )"RESULT" from dual;
[color=red]RESULT
---
2
SQL> select case 2
2 when 1 then 1
3 when 2 then 2
4 else 3
5 end "RESULT" from dual;
[code]...
I am trying to get same output but different methods. Yes, clearly states this is one of the Oracle bug! Oracle compares int variables to int variables, char variables to char variables, If any discrepancy between the two data types, then the query will fail but here not different data types.
Even if I refer reference books some concepts are blind to understand.
My DB version is
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
I'm getting this error while executing a package.But this is unpredictable because sometimes it's coming and sometimes it's not. Everytime I'm passing the value as 'ALERT' for the transaction name. Sometimes it's successful and sometimes it's throwing ORA-06592
CASE UPPER(IC_TRANSACTION_NAME)
WHEN 'ALERT' THEN
SELECT A.FACILITY_ID INTO VN_FACILITY_ID FROM ALERT A
WHERE A.ALERT_ID = IN_PARENT_NODE_ID;
INSERT INTO TRANSACTION_HISTORY (TXN_HISTORY_ID,
[code]....
Which warehouses have pending orders for products, which are not in stock at the warehouse at the moment? Provide warehouse number, id of the product that is not in stock, number of orders issued for this product and total quantity ordered.
The tables I am using are
Warehouses:
Name Type
----------------------------------------
W_ID NUMBER(38)
CITY VARCHAR2(20)
W_SIZE NUMBER(38)
Inventories:
Name Type
-----------------------------------------
P_ID NUMBER(38)
W_ID NUMBER(38)
QUANTITY NUMBER(38)
Orders:
Name Type
-----------------------------------------
ORD_ID NUMBER(38)
SUPPLIER_ID NUMBER(38)
ISSUING_EMP_ID NUMBER(38)
ORDER_DATE DATE
ORDER_STATUS CHAR(1)
This is my code so far:
select w.w_id, i.p_id,
sum(decode(o.ord_id, ' ', i.p_id, 0)) Orders_issued,
select sum(i.quantity)
from
inventories i
orders o,
[code]...
but I get this error:
select sum(i.quantity)
*
ERROR at line 3:
ORA-00936: missing expression
Just working with Unix for the first time and trying to understand this decode statement?
cursor l_cursor is select decode(type||'-'||to_char(line,'fm99999'),
'PACKAGE BODY-1','/'||chr(10), null) ||
decode(line,1,'create or replace ', '') ||
decode(type||'-'||to_char(line,'fm99999'),
'JAVA SOURCE-1','and compile ' || type || ' named "' ||
name || '"' || chr(10) || 'AS' || chr(10), '') ||
text text
from user_source
where upper(name) = upper(p_name)
order by type, line;
In my Hard code i saw decode like this
DECODE(tablename.columnname,'k',text,NULL,text, NULL)
can I use decode like this.
im used to using PL SQL via oracle. but lately ive been doing a lot of mysql and PHP and i really need to use something similar to DECODE in my queries. or am i forced to do the checks via PHP.
View 6 Replies View RelatedI need to get create_user_id for different sale_location_id.Also create_user_id field will be having different values.This is part of my big query.I need to add this stmt in that.So taken that part and figuring it out.
create table it(sale_location_id number,create_user_id varchar2(10));
table IT created.
insert into it values(1,'ISRA')
1 rows inserted.
insert into it values(2,'USFA')
1 rows inserted.
select a.sale_location_id,decode(a.sale_location_id,1,a.create_user_id like 'IS%',a.create_user_id like 'U%') create_user_id from it a
given error as:
ORA-00907: missing right parenthesis 00907. 00000 - "missing right parenthesis"
How to write this.
I have a scenario where in report table I need to get
IF FLAG='Y' AND LOC=118443 THEN STATE='FIN'
IF FLAG='Y' AND LOC!=118443 THEN STATE SHOULD BE ('COMP','PART')
IF FLAG='N' IT SHOULD INCLUDE ALL STATES.
I tried using decode in WHERE CLAUSE , but not successful.
Create Table Report(Id Number,Loc Number,Flag Varchar2(3),State Varchar2(20));
table REPORT created.
Insert Into Report Values(1,1,'Y','COMP');
1 rows inserted.
Insert Into Report Values(2,118443,'Y','FIN');
1 rows inserted.
Insert Into Report Values(7,118443,'Y','COMP');
1 rows inserted.
[code]...
I tried writing a decode statement but it doesn't work as expected. The data I'm working has 4 different brand names with an associated code. I tried using decode to get the 4 brands to be on one line like this: Description, Inventory_Item, Product_Line, Product_Type, Brand_1, Brand_2, Brand_3, Brand_4..I still get 4 lines with the Brands displayed like a stair steps.
What do I have to do to get the data on one line? My code is as follows:
SELECT sgk_invfg_organization_items.description,
sgk_invfg_organization_items.inventory_item,
sgk_invfg_organization_items.product_line,
sgk_invfg_organization_items.product_type,
Decode(sgk_item_master_launch_v.sgk_model_item, 20,
sgk_item_master_launch_v.sgk_model_number) brand_1,
Decode (sgk_item_master_launch_v.sgk_model_item, 30,
[code]...
I have a small doubt...Without any creation of tables as I feel it's not needed...(let me know if u need them) Error says "Missing Keyword"
select distinct record_number
from meta m, procedu b, control v, fact f, calendar dc, person p
where f.key = m.key and f.group_key = b.group_key
and b.proc_key = v.proc_key
and f.calendar_key = dc.calendar_key
and f.person_key = p.person_key
and VALUE BETWEEN DECODE((Select distinct operator_type
[code]....
But this gives an error...If the decode gives a "single"...the statement is working fine...but If the decode gives a "range"...the above statement gives an error saying "missing keyword"..Does the above code when mapped to "Range"...is it not producing "and" like " value between 100 and 1000"
How can i use the decode function?
for example
I have the value of 1000 then the numbers 50-100 will be 'A' and 1-49 = 'B'?
DECODE(:P_PERIOD_TYPE,'PJTD','PROJECT-TO-DATE','PTD','PERIOD-TO-DATE','YTD','YEAR-TO-DATE')
what does it mean..
How to get the required output with single query to acheive IF SAL>2500 and job='manager' then display job as 'seniormanager'.
CREATE TABLE EMP(EMPNO NUMBER(4) NOT NULL,ENAME VARCHAR2(10),JOB VARCHAR2(9),MGR NUMBER(4),HIREDATE DATE,SAL NUMBER(7, 2),COMM NUMBER(7, 2),DEPTNO NUMBER(2));
INSERT INTO EMP VALUES(7521, 'WARD', 'SALESMAN', 7698,TO_DATE('22-FEB-1981', 'DD-MON-YYYY'), 1250, 500, 30);
INSERT INTO EMP VALUES(7566, 'JONES', 'MANAGER', 7839,TO_DATE('2-APR-1981', 'DD-MON-YYYY'), 2975, NULL, 20);
INSERT INTO EMP VALUES(7698, 'BLAKE', 'MANAGER', 7839,TO_DATE('1-MAY-1981', 'DD-MON-YYYY'), 2850, NULL, 30);
INSERT INTO EMP VALUES(7782, 'CLARK', 'MANAGER', 7839,TO_DATE('9-JUN-1981', 'DD-MON-YYYY'), 2450, NULL, 10);
INSERT INTO EMP VALUES(7788, 'SCOTT', 'ANALYST', 7566,TO_DATE('09-DEC-1982', 'DD-MON-YYYY'), 3000, NULL, 20);
[code]....
select
DECODE(PAA.C_TYPE_DESC,'TXIS CASUAL LEAVE',NVL(PAA.ABSENCE_DAYS,0)) TCL,
DECODE(PAA.C_TYPE_DESC,'TXIS SICK LEAVE',NVL(PAA.ABSENCE_DAYS,0)) TSL,
DECODE(PAA.C_TYPE_DESC,'TXIS PRIVELEGE LEAVE',NVL(PAA.ABSENCE_DAYS,0)) TPL
from PER_ABSENCE_ATTENDANCES_V PAA
i want to use nvl function within decode function
means if C_TYPE_DESC is 'TXIS CAUSAL LEAVE' it return ABSENCE_DAYS but if ABSENCE_DAYS are null it will be return 0 else it should be return Absence_days
What I have to do is this:
List supplier�s name, id, number of pending orders, number of completed orders and number of all orders from this supplier. (my query doesn't include the last part yet).
My tables are as follows:
Suppliers:
S_ID
NAME
ADDRESS
PROVINCE
PHONE_NUMBER
Orders:
ORD_ID
SUPPLIER_ID
ISSUING_EMP_ID
ORDER_DATE
ORDER_STATUS
and this is what I have so far:
select name, s_id
sum(decode(order_status, 'P',1,0)) pending,
sum(decode(order_status, 'C',1,0)) completed
from suppliers
where s_id in
(select supplier_id from orders);
but I still get an error that says "sum(decode(order_status, 'P',1,0)) pending,
*
ERROR at line 2:
ORA-00923: FROM keyword not found where expected"
I assume this is because I'm not properly referencing the orders table.
Is it possible to decode based off a different column? I have a status column that i want to change the value of with a decode, but only if my date column has been populated.
So if status has a value of "New" and my date column is null, then i want it to stay new. If it is populated, i want my status to change to "released"
Explain me the following behavior of DECODE?
SQL> select decode(null,null,'Matched','Not Matched') from dual;
DECODE(
-------
Matched
As expected, output should be 'Not Matched' instead of 'Matched'
i am using the following within queries:
decode(qt_flag,'KT','Y',decode(qt_flag,'IT','Y','N'))
It works fine but when i use in ETL tool it is not working. Is there a way to use decode just once with multiple values like above.
While am working with Decode just found something, why it is returning like this.
I Ran this query where i have used all the date format as DD/MM/YYYY
SELECT DECODE(TO_DATE('25/04/2001','DD/MM/YYYY') ,
TO_DATE('01/01/1900','DD/MM/YYYY'), NULL ,
TO_DATE('25/04/2001','DD/MM/YYYY')) TEST
FROM DUAL
Quote:
TEST
-------------
25-APR-01
But the resule i got in DD-MON-YY
i tried searching this forum with searching strings Decode date format.. or similer i found nothing.
I have used a decode statement in my query instead of using select * from <table_name> where value in <>
Instead I have used decode(value,<value1>, <value2>)
Which would be a better performance code?
I need to apply an outer join on following statement.
Select * From Abc A,Def B
Where Decode(A.Fin_Wid,10,A.Gry_Wid,A.Fin_Wid)=B.Fin_Wid;
I used following but error
Select * From Abc A,Def B
Where Decode(A.Fin_Wid,10,A.Gry_Wid,A.Fin_Wid)(+)=B.Fin_Wid;